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1.
1) A gentleman who is trying to make you look a fool in front of your associates.

2) A reputedly nasty character of less than average intelligence.
Your not football supporters, your fucking muggy little cunts

I should fuckin' open you up you muggy cunt
by Johnny S December 19, 2005
 
2.
General word to offend someone who is not only a cunt but a mug aswell.
Someone who was to say they can play football but actually cant, then tries to show off and fails, is not only a cunt but a mug aswell.

"Your a Muggycunt and you cant play football Tarren"
by SteveCunningham May 05, 2007